53 lines
1.6 KiB
C++
53 lines
1.6 KiB
C++
/*
|
|
* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license
|
|
* that can be found in the LICENSE file in the root of the source
|
|
* tree. An additional intellectual property rights grant can be found
|
|
* in the file PATENTS. All contributing project authors may
|
|
* be found in the AUTHORS file in the root of the source tree.
|
|
*/
|
|
|
|
|
|
#ifndef VPX_PORTS_MEM_H_
|
|
#define VPX_PORTS_MEM_H_
|
|
|
|
#include "vpx_config.h"
|
|
#include "vpx/vpx_integer.h"
|
|
|
|
#if (defined(__GNUC__) && __GNUC__) || defined(__SUNPRO_C)
|
|
#define DECLARE_ALIGNED(n,typ,val) typ val __attribute__ ((aligned (n)))
|
|
#elif defined(_MSC_VER)
|
|
#define DECLARE_ALIGNED(n,typ,val) __declspec(align(n)) typ val
|
|
#else
|
|
#warning No alignment directives known for this compiler.
|
|
#define DECLARE_ALIGNED(n,typ,val) typ val
|
|
#endif
|
|
|
|
/* Indicates that the usage of the specified variable has been audited to assure
|
|
* that it's safe to use uninitialized. Silences 'may be used uninitialized'
|
|
* warnings on gcc.
|
|
*/
|
|
#if defined(__GNUC__) && __GNUC__
|
|
#define UNINITIALIZED_IS_SAFE(x) x=x
|
|
#else
|
|
#define UNINITIALIZED_IS_SAFE(x) x
|
|
#endif
|
|
|
|
#if HAVE_NEON && defined(_MSC_VER)
|
|
#define __builtin_prefetch(x)
|
|
#endif
|
|
|
|
/* Shift down with rounding */
|
|
#define ROUND_POWER_OF_TWO(value, n) \
|
|
(((value) + (1 << ((n) - 1))) >> (n))
|
|
|
|
#define ALIGN_POWER_OF_TWO(value, n) \
|
|
(((value) + ((1 << (n)) - 1)) & ~((1 << (n)) - 1))
|
|
|
|
#if CONFIG_VP9_HIGHBITDEPTH
|
|
#define CONVERT_TO_SHORTPTR(x) ((uint16_t*)(((uintptr_t)x) << 1))
|
|
#define CONVERT_TO_BYTEPTR(x) ((uint8_t*)(((uintptr_t)x) >> 1))
|
|
#endif // CONFIG_VP9_HIGHBITDEPTH
|
|
|
|
#endif // VPX_PORTS_MEM_H_
|